METHOD AND APPARATUS FOR CARRIER PHASE-BASED REFERENCE SIGNAL

1 . A user equipment (UE) for wireless communication, comprising:

at least one memory;

a transceiver; and

at least one processor coupled with the at least one memory and configured to cause the UE to:

generate a continuous positioning reference signal for continuous tracking of phase for positioning using a raised cosine technique; and

transmit the continuous positioning reference signal, the continuous positioning reference signal extending across at least two contiguous symbols within a first subcarrier.

2 . The UE of claim 1 , wherein the at least one processor is further configured to cause the UE to:

generate the continuous positioning reference signal by combining a transformed suffix of a first symbol with a transformed prefix of a second symbol that is contiguous with the first symbol.

3 . The UE of claim 2 , wherein the at least one processor is further configured to cause the UE to:

generate the transformed suffix by applying a first raised cosine to an initial suffix of a first symbol; and

generate the transformed prefix by applying a second raised cosine to an initial prefix of a second symbol.

4 . The UE of claim 3 , wherein applying the first raised cosine to the initial suffix includes modifying the initial suffix by a cosine that starts at 1 and rolls off to 0.

5 . The UE of claim 3 , wherein applying the second raised cosine to the initial prefix includes modifying the initial prefix by a cosine that starts at 0 and rolls on to 1.

6 . The UE of claim 2 , wherein the first transformed suffix has 16 samples and the second transformed prefix has 16 samples.

7 . The UE of claim 3 , wherein a cosine of the first raised cosine applied to the initial suffix is an inverse of the second raised cosine applied to the initial prefix.

8 . The UE of claim 2 , wherein the combined suffix and prefix is used as a prefix for a symbol in the continuous positioning reference signal.

9 . The UE of claim 1 , wherein the at least one processor is further configured to cause the UE to receive a positioning measurement report including a phase measurement of the continuous positioning reference signal.

10 . The UE of claim 9 , wherein the at least one processor is further configured to cause the UE to provide the positioning measurement report including the phase measurement of the continuous positioning reference signal to a network function.

11 . A processor for wireless communication, comprising:

at least one memory; and

a controller coupled with the at least one memory and configured to cause the controller to:

generate a continuous positioning reference signal for continuous tracking of phase for positioning using a raised cosine technique; and

transmit the continuous positioning reference signal, the continuous positioning reference signal extending across at least two contiguous symbols within a first subcarrier.

12 . The processor of claim 11 , wherein the controller is further configured to cause the controller to:

generate the continuous positioning reference signal by combining a transformed suffix of a first symbol with a transformed prefix of a second symbol that is contiguous with the first symbol.

13 . The processor of claim 12 , wherein the controller is further configured to cause the controller to:

generate the transformed suffix by applying a first raised cosine to an initial suffix of a first symbol; and

generate the transformed prefix by applying a second raised cosine to an initial prefix of a second symbol.

14 . The processor of claim 13 , wherein applying the first raised cosine to the initial suffix includes modifying the initial suffix by a cosine that starts at 1 and rolls off to 0.

15 . The processor of claim 13 , wherein applying the second raised cosine to the initial prefix includes modifying the initial prefix by a cosine that starts at 0 and rolls on to 1.

16 . The processor of claim 12 , wherein the first transformed suffix has 16 samples and the second transformed prefix has 16 samples, and

wherein the combined suffix and prefix is used as a prefix for a symbol in the continuous positioning reference signal.

17 . The processor of claim 13 , wherein a cosine of the first raised cosine applied to the initial suffix is an inverse of the second raised cosine applied to the initial prefix.

18 . The processor of claim 11 , wherein the controller is further configured to cause the controller to receive a positioning measurement report including a phase measurement of the continuous positioning reference signal, and

provide the positioning measurement report including the phase measurement of the continuous positioning reference signal to a network function.

19 . A method performed by a user equipment (UE), the method comprising:

generating a continuous positioning reference signal for continuous tracking of phase for positioning using a raised cosine technique; and

transmitting the continuous positioning reference signal, the continuous positioning reference signal extending across at least two contiguous symbols within a first subcarrier.

20 . A transmission reception point (TRP), comprising:

a processor; and

a transceiver coupled to the processor,

wherein the processor is configured to cause the TRP to:

generate a continuous positioning reference signal for continuous tracking of phase for positioning using a raised cosine technique; and

transmit the continuous positioning reference signal, the continuous positioning reference signal extending across at least two contiguous symbols within a first subcarrier.